Using an ICD-9-CM code book, select the appropriate code(s) for the diagnostic statements given in the following questions

Maintaining neutral alignment during a task requires:

a. recognizing limitations b. applying force efficiently c. maintaining optimal center of gravity d. all of the above

All of the following are local factors associated with gingival diseases except one. Which one is the exception?

A) Medications B) Dental restorative materials C) Systemic diseases D) Occlusal trauma E) Fungal infections